Security element

Abstract

The invention relates to a security element (1). The security element (1) has a viewing side and a back side that is opposite the latter. The security element comprises at least one luminous layer (2) that can provide light (20), and at least one mask layer (4) that, when the security element (1) is viewed from the viewing side, is arranged in front of the at least one luminous layer (2). The at least one mask layer (4) has at least one opaque region (5) and at least two transparent openings (41, 42). The at least two transparent openings (41, 42) has a substantially higher transmittance than the at least one opaque region (5) in respect of light (20) provided by the at least one luminous layer (2), preferably a transmittance that is at least 20% higher, particularly preferably a transmittance that is at least 50% higher.

Description

[0001]This application claims priority based on an International Application filed under the Patent Cooperation Treaty, PCT / EP2012 / 071310, filed on Oct. 26, 2012, and German Application No. DE 102011117044.1, filed on Oct. 27, 2011.BACKGROUND OF THE INVENTION[0002]The invention relates to a security element and to a security document equipped with such a security element, to a method for producing such a security element, and to a transfer foil having such a security element.[0003]There are known security elements, for the identification marking of security documents, by which it is sought to improve the protection against falsification. Some of these security elements make use of an arrangement of microlenses, such as, e.g., the multilayer body described in the international patent application WO 2007 / 087984 A1. Frequently, however, in unfavorable light conditions, the variations of the optical appearance that can be produced with these can be perceived only with difficulty, and ar...

AI Technical Summary

Benefits of technology

The invention provides a flexible security element that has optical effects that are easy to see and, at the same time, are surprising or unexpected, which makes them more impactful.

Problems solved by technology

Frequently, however, in unfavorable light conditions, the variations of the optical appearance that can be produced with these can be perceived only with difficulty, and are not sufficiently distinctive for the “man on the street”.

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